Nissan Versa (N17): P1148 closed loop control

Nissan Versa 2nd generation (N17) Service Manual / Engine / Engine control system (EC) / P1148 closed loop control

DTC Logic

DTC DETECTION LOGIC

NOTE: DTC P1148 is displayed with DTC for A/F sensor 1.

When the DTC is detected, perform the trouble diagnosis of DTC corresponding to A/F sensor 1.

DTC No.	Trouble diagnosis (Trouble diagnosis content)	DTC detecting condition	Possible cause
P1148	CLOSED LOOP-B1 (Closed loop control function)	The closed loop control function does not operate even when vehicle is being driven in the specified condition.	Harness or connectors (A/F sensor 1 circuit is open or shorted.) A/F sensor 1 A/F sensor 1 heater

Diagnosis Procedure

DTC P1148 is displayed with DTC for A/F sensor 1.

When the DTC is detected, perform the trouble diagnosis of DTC corresponding to A/F sensor 1.

Refer to EC, "DTC Index".

P1078 EVT control position sensor

P117A air fuel ratio

Other materials:

Push-button ignition switch (if so equipped)
WARNING Do not operate the push-button ignition switch while driving the vehicle except in an emergency. (The engine will stop when the ignition switch is pushed 3 consecutive times in quick succession or the ignition switch is pushed and held for more than 2 seconds.) If the engine stops ...

Shift lock system
SHIFT LOCK SYSTEM : Component Parts Location 1. Stop lamp switch 2. Shift lock release lever 3. Park position switch 4. Shift lock solenoid Component Function Stop lamp switch Stop lamp switch turns ON when brake pedal is depressed Shift lock release lever Ma ...

Nissan Versa (N17): P1148 closed loop control

P1078 EVT control position sensor

P117A air fuel ratio

Other materials:

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